Isaac bbowh



I. BROWN. DENTAL ATTACHMENT.

APPLICATION FILED APR.23. 1919.

Patented-Sept. 2,

WITNESSES A TTORNEYS ISAAC BROWN, on NEW YORK, n. Y'.

DENTAL ATTACHMENT.

Specification of Letters Patent.

Application filed April 23. 1919. Serial No. 292.031.

To all 107mm it may oncern.

Be it known that l. AM. Zen of the l nited States. and a resident of the city of New York. borough of Bronx, county of Bronx. and State of New York,

I have e ema. annew and Improved Dental .rxttaclunentiot' which the following is a full. clear. and exact'deription.

This invention I tes to dentistry. More particular it relatf. to removable'bridge work employed in connection with the installation of artificial teeth in the patients mouth.

An object of this invention is to provide, certain removable bridge fixtures used for supporting artificial teeth. Another objectof the invention is to provide a certain form:

of split pin dental fixtures to be used in connection with tubular supports such that the removable bridge work or artificial teeth canbe periodically tightened to correct all looseness of the tooth. and to keep said tooth located in the patients mouth in a positive and immovable relation.

Still another object of the invention is to disclose the various forms of split pin dental .fixtures best adapted for the particular nature of work at hand. A broad feature of the invention resides in the use of flexible and springy expanding material for carrying out the above described purposes.

'ith the above principal objects in view the invention has relation to a certain arrangement and combination of parts. an example of which is described in the followin; specification. pointed out in the appended claims. and illustrated in the accompanyint: drawings. wherein:

Figure 1 shows a removable bridge em -ployin5 "1ny particular form of expansive split pin dental appliance.

Fin. 2 shows a top view of a rectangular shaped expansive dental appliance.

Fin. 3 a view taken upon'the line 33 of Fig. 2.

Fig. -l shows the expansive dental appliplaced in position 'thereof to provide bod v thereof as shown in Fig. 8.

oshows'a top viewof an expansive lla'tentedbept. 2, 1919. i

Fig. 8 shows an expansive pin appliance I before it is shaped and built into an inlay.

uponthe line 9-9 nieral 1 and numeral 2 designate sound teeth within the patients mouth, and between which it is desired to install van artificial tooth or removable denture. The two teeth 1 and 2' will be carefully drilled. and opened up until they are ready to receive a metallic orgold inlay A mold of cavity formed in the teeth will be made by the ordinary methods used by skilled dental. mec ianics. and the gold inlay prepared from the mold. A tube i will be embedded in themold of the inlay. and the assembled inlay and tube in the prepared cavities of the teeth. Slots will next be cut in the wall of the inlay and tube. formed to receive the removable denture. The solid wall tube is molded in the inlay so that an adequate soldering'job can be carried out around the outer portions of the inlay, filling in the inlay to the desired thickness. a

An artificial tooth 5 has secured tomethod known to skilled dental mechanics. the web (3 integrally formed with an expansive split pin 7. T he dental appliance 7 will be made of any suitably hard and springy is next built up and material. and split down the center the completed appliance.

ln buildingl up the artificial tooth with the integrally formed split pin appliances. the

pin appliance will'first be taken up for shap in; and finishing and handled by the long After it is secured to the teeth and artificial denture completed the upper-body portions of the pin 7 will be cut'off the right length for fitting into the tube 4.

' The denture 5 with its integral expansive appliance. will then be inserted in position shown in Fig. 1 with the split pin passed downwardly ,into the tube of the inlay with the Webs 6 'restingin ,the slots of the tube and inlay. The splitlpin dental appliances are manufactured by splitting the pin body down the center thereof and leaving it solid These slots are the sidesthereof by any at the bottom. -.The" pin will be made of some suitable material which has springingly expansive characteristlcs' so that the pin when spread open'as illustratedin Fig. 7 will engage the tube of the inlay very tightly when the removable denture is inserted in the patients mouth. After considera'ble use'ofan art-ificial tooth of the removable type, the fittings thereof become v It is -,therefore,. the purpose of this invention td Slightly loosened, permittingplay.

' provide a split pin dental appliance which loan be spread open by inserting a knife blade or other tool into the split of the pin.

The artificial tooth will then be reinserted into the'patients mouth where it will remain very'tightly engaged with the teeth 1 and 2, due to the expansive nature of the spread pin within the tubes of the inlay.

Figsa2, at and 5 show a form of rectangular shaped split pin orbar 1-0 which may .be employed for-large and heavy teeth, or employed where the round pin would not be desirable to use. The tube shown in Fig. 5 shows the square receptacle tubmg'used m 'theinlay for receiving the split dental appliance.

F igs.'6 and 7 show an oblong shaped split pin appliance and may be employed to advantage in certain cases. i

" Figs. 8, 9 and 10 disclose the particular form and shape of cylindrical pin and tube which are employed to build up the removable denture and inlay. The removable denture shown in Fig. 11 shows the completed artificial tooth ready to be installed In a patients-mouth.

This form of dental appliance will measurably improve thepresent day removable dentures and provide the patient with a r9- movable artificial tooth which can be reinstalled in his mouth in a tight and imnlovable relation with other teeth.

Having thus described my invention, what I claim as new, and desire to secure by Let-.

ters Patent is:

1. A removable denture construction, comprising in combination; a metallic inlay, a tube embedded in the inlay and Provided with a slot formed in the wall of the tube and inlay, a split pin made of spring mate rial, and a web attached to the split pin and adapted to liewithin the slot. formed in the tube and inlay. j i

2. A dental appliance of the character de scribed, comprising in combination; a slotstanding members said web adapted tolie in the slot of 'the tube. i

4. A dental appliance comprising; a pm split from one end to approximately the the pin at rightangles withjtlic plane of the spli ISAAC. BROWN.

" other end, and a web integrallv formed with 

